<?php
/* 
 * Copyright (c) 2011 Antoine d'Otreppe de Bouvette
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
 * IN THE SOFTWARE.
 */

class InputWidget implements Widget {
    const TYPE_TEXT = 'text';
    const TYPE_PASSWORD = 'password';
    
    /**
     * @var string
     */
    private $type;
    
    /**
     * @var Formatter
     */
    private $formatter;
    
    public function __construct($type=self::TYPE_TEXT, $formatter=null) {
        $this->type = $type;
        $this->formatter = $formatter;
    }
    
    public function toHtml($name, $value, $id=null) {
        return sprintf('<input type="%s" value="%s" name="%s" '.
                        'class="aspyct-form-field"%s/>',
                        $this->type, $this->format($value), $name,
                        $id !== null ? ' id="'.$id.'"' : '');
    }
    
    private function format($value) {
        if ($this->formatter !== null) {
            return $this->formatter->format($value);
        }
        else {
            return $value;
        }
    }
    
    /**
     * Formats the user input according to the type of this field.
     * Date/Time are returned as a DateTime object.
     * 
     * @param string $input
     * @return string
     */
    public function interpretInput($input) {
        $input = trim($input);
        
        if (!$input) {
            return null;
        }
        
        if ($this->formatter) {
            return $this->formatter->interpret($input);
        }
        else {
            return $input;
        }
    }
}
